| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.8 | 50.9 | 55.7 | 59.9 | 66.3 | 71.8 | 79.9 | 80.7 | 75.3 | 63.2 | 51.5 | 45.0 | 62.3 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.2 | 42.3 | 45.9 | 49.2 | 54.7 | 59.6 | 65.1 | 65.1 | 60.5 | 52.0 | 44.3 | 39.1 | 51.6 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 33.6 | 33.6 | 36.0 | 38.5 | 43.2 | 47.4 | 50.3 | 49.6 | 45.7 | 40.8 | 37.1 | 33.1 | 40.8 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 7.53 | 6.02 | 6.06 | 5.12 | 3.97 | 3.25 | 0.89 | 0.80 | 2.02 | 4.46 | 8.71 | 8.38 | 57.21 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 769. | 637. | 594. | 474. | 323. | 178. | 63. | 60. | 156. | 404. | 621. | 804. | 5083. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 16. | 66. | 64. | 21. | 1. | 0. | 0. | 174. |